p38α inhibitor 2

Name: p38α inhibitor 2
Brand: MedChemExpress
SKU: HY-131335
Rating: 4.5 (1 reviews)

Cat. No.: HY-131335 Purity: 98.03%: FAQs
Data Sheet SDS COA Handling Instructions

Molarity Calculator

p38α inhibitor 2 is a highly potent and selective p38α MAPK inhibitor, with a pIC₅₀ of 9.6. p38α inhibitor 2 inhibits the hERG ion channel (IC₅₀=27 μM) and shows a promising selectivity profile when tested in a panel of 51 other protein kinases (<30% inhibition at 10 μM concentration) and a panel of 141 other biological targets.

For research use only. We do not sell to patients.

p38α inhibitor 2 Chemical Structure

CAS No. : 1095003-80-7

Size	Price	Stock	Quantity
Solid + Solvent (Highly Recommended)
10 mM * 1 mL in DMSO ready for reconstitution	USD 366	In-stock	Estimated Time of Arrival: December 31
Solution
10 mM * 1 mL in DMSO	USD 366	In-stock	Estimated Time of Arrival: December 31
Solid
5 mg	USD 350	In-stock	Estimated Time of Arrival: December 31
10 mg	USD 580	In-stock	Estimated Time of Arrival: December 31
25 mg	USD 1100	In-stock	Estimated Time of Arrival: December 31
50 mg	USD 1700	In-stock	Estimated Time of Arrival: December 31
100 mg	USD 2500	In-stock	Estimated Time of Arrival: December 31
200 mg		Get quote
500 mg		Get quote

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Customer Review

Based on 1 publication(s) in Google Scholar

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View All Isoforms

p38 MAPK p38α p38β MAPK13 p38δ p38γ

Biological Activity
Purity & Documentation
References
Customer Review

Description

IC₅₀ & Target^[1]

p38α MAPK

9.6 (pIC₅₀)

Molecular Weight

475.58

Formula

C₂₇H₃₃N₅O₃

CAS No.

1095003-80-7

Appearance

Solid

Color

Off-white to light yellow

SMILES

O=C(NC1CC1)C2=CC=C(C)C(N3C(C(NC(C4=CC=CC=C4OCCNC)(C)C)=NC=C3)=O)=C2

Shipping

Room temperature in continental US; may vary elsewhere.

Storage

Powder	-20°C	3 years
	4°C	2 years
In solvent	-80°C	6 months
	-20°C	1 month

Solvent & Solubility

In Vitro:

DMSO : 250 mg/mL (525.67 mM; Need ultrasonic; Hygroscopic DMSO has a significant impact on the solubility of product, please use newly opened DMSO)

Preparing
Stock Solutions

Concentration Solvent Mass	1 mg	5 mg	10 mg

1 mM	2.1027 mL	10.5135 mL	21.0270 mL
5 mM	0.4205 mL	2.1027 mL	4.2054 mL
10 mM	0.2103 mL	1.0513 mL	2.1027 mL

View the Complete Stock Solution Preparation Table

* Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles.
Storage method and period of stock solution: -80°C, 6 months; -20°C, 1 month. When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.

Molarity Calculator
Dilution Calculator

Mass (g) = Concentration (mol/L) × Volume (L) × Molecular Weight (g/mol)

Concentration _(start) × Volume _(start) = Concentration _(final) × Volume _(final)

This equation is commonly abbreviated as: C₁V₁ = C₂V₂

Concentration _(start)

Volume _(start)

Concentration _(final)

Volume _(final)

In Vivo:

Select the appropriate dissolution method based on your experimental animal and administration route.

For the following dissolution methods, please ensure to first prepare a clear stock solution using an In Vitro approach and then sequentially add co-solvents:
To ensure reliable experimental results, the clarified stock solution can be appropriately stored based on storage conditions. As for the working solution for in vivo experiments, it is recommended to prepare freshly and use it on the same day.
The percentages shown for the solvents indicate their volumetric ratio in the final prepared solution. If precipitation or phase separation occurs during preparation, heat and/or sonication can be used to aid dissolution.

Protocol 1

Add each solvent one by one: 10% DMSO 40% PEG300 5% Tween-80 45% Saline
Solubility: ≥ 6.25 mg/mL (13.14 mM); Clear solution

This protocol yields a clear solution of ≥ 6.25 mg/mL (saturation unknown).
Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (62.5 mg/mL) to 400 μL PEG300, and mix evenly; then add 50 μL Tween-80 and mix evenly; then add 450 μL Saline to adjust the volume to 1 mL.
Preparation of Saline: Dissolve 0.9 g sodium chloride in ddH₂O and dilute to 100 mL to obtain a clear Saline solution.
Protocol 2

Add each solvent one by one: 10% DMSO 90% (20% SBE-β-CD in Saline)
Solubility: 6.25 mg/mL (13.14 mM); Suspended solution; Need ultrasonic

This protocol yields a suspended solution of 6.25 mg/mL. Suspended solution can be used for oral and intraperitoneal injection.
Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (62.5 mg/mL) to 900 μL 20% SBE-β-CD in Saline, and mix evenly.
Preparation of 20% SBE-β-CD in Saline (4°C, storage for one week): 2 g SBE-β-CD powder is dissolved in 10 mL Saline, completely dissolve until clear.
Protocol 3

Add each solvent one by one: 10% DMSO 90% Corn Oil
Solubility: ≥ 6.25 mg/mL (13.14 mM); Clear solution

This protocol yields a clear solution of ≥ 6.25 mg/mL (saturation unknown). If the continuous dosing period exceeds half a month, please choose this protocol carefully.
Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (62.5 mg/mL) to 900 μL Corn oil, and mix evenly.

In Vivo Dissolution Calculator

Please enter the basic information of animal experiments:

Dosage

mg/kg

Animal weight
(per animal)

Dosing volume
(per animal)

μL

Number of animals

Recommended: Prepare an additional quantity of animals to account for potential losses during experiments.

Please enter your animal formula composition:

DMSO +

Tween-80 +

Saline

Recommended: Keep the proportion of DMSO in working solution below 2% if your animal is weak.

The co-solvents required include: DMSO, . All of co-solvents are available by MedChemExpress (MCE). , Tween 80. All of co-solvents are available by MedChemExpress (MCE).

Calculation results:

Working solution concentration: mg/mL

Method for preparing stock solution: mg drug dissolved in μL DMSO (Stock solution concentration: mg/mL).

The concentration of the stock solution you require exceeds the measured solubility. The following solution is for reference only. If necessary, please contact MedChemExpress (MCE).

Method for preparing in vivo working solution for animal experiments: Take μL DMSO stock solution, add μL . μL , mix evenly, next add μL Tween 80, mix evenly, then add μL Saline.

If the continuous dosing period exceeds half a month, please choose this protocol carefully.

Please ensure that the stock solution in the first step is dissolved to a clear state, and add co-solvents in sequence. You can use ultrasonic heating (ultrasonic cleaner, recommended frequency 20-40 kHz), vortexing, etc. to assist dissolution.

Purity & Documentation

Purity: 98.03%

Select Batch:

Data Sheet (278 KB) SDS (252 KB)

COA (256 KB) LCMS (98 KB)

Handling Instructions (2659 KB)

References

[1]. Raubo P, et al. The discovery and evaluation of 3-amino-2(1H)-pyrazinones as a novel series of selective p38α MAP kinase inhibitors [published online ahead of print, 2020 Jul 15]. Bioorg Med Chem Lett. 2020;30(18):127412. [Content Brief]

Complete Stock Solution Preparation Table

Optional Solvent	Concentration Solvent Mass	1 mg	5 mg	10 mg	25 mg

DMSO	1 mM	2.1027 mL	10.5135 mL	21.0270 mL	52.5674 mL
	5 mM	0.4205 mL	2.1027 mL	4.2054 mL	10.5135 mL
	10 mM	0.2103 mL	1.0513 mL	2.1027 mL	5.2567 mL
	15 mM	0.1402 mL	0.7009 mL	1.4018 mL	3.5045 mL
	20 mM	0.1051 mL	0.5257 mL	1.0513 mL	2.6284 mL
	25 mM	0.0841 mL	0.4205 mL	0.8411 mL	2.1027 mL
	30 mM	0.0701 mL	0.3504 mL	0.7009 mL	1.7522 mL
	40 mM	0.0526 mL	0.2628 mL	0.5257 mL	1.3142 mL
	50 mM	0.0421 mL	0.2103 mL	0.4205 mL	1.0513 mL
	60 mM	0.0350 mL	0.1752 mL	0.3504 mL	0.8761 mL
	80 mM	0.0263 mL	0.1314 mL	0.2628 mL	0.6571 mL
	100 mM	0.0210 mL	0.1051 mL	0.2103 mL	0.5257 mL